3131633096857 has 2 divisors, whose sum is σ = 3131633096858. Its totient is φ = 3131633096856.

The previous prime is 3131633096833. The next prime is 3131633096861. The reversal of 3131633096857 is 7586903361313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2922472306576 + 209160790281 = 1709524^2 + 457341^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131633096857 - 2¹¹ = 3131633094809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3131633096798 and 3131633096807.

It is not a weakly prime, because it can be changed into another prime (3131633096807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565816548428 + 1565816548429.

It is an arithmetic number, because the mean of its divisors is an integer number (1565816548429).

Almost surely, 2^{3131633096857} is an apocalyptic number.

It is an amenable number.

3131633096857 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131633096857 is an equidigital number, since it uses as much as digits as its factorization.

3131633096857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 3131633096857 in words is "three trillion, one hundred thirty-one billion, six hundred thirty-three million, ninety-six thousand, eight hundred fifty-seven".